base: Move SplitStringDontTrim functions from string_util.h to string_split.h

base/string_split_unittest.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/string_split.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::ElementsAre;
 
@@ skipping 159 matching lines @@
   std::vector<std::string> results;
   SplitStringUsingSubstr(
       "unDELIMITERdeuxDELIMITERtroisDELIMITERquatreDELIMITERDELIMITERDELIMITER",
       "DELIMITER",
       &results);
   ASSERT_EQ(7u, results.size());
   EXPECT_THAT(
       results, ElementsAre("un", "deux", "trois", "quatre", "", "", ""));
 }
 
+TEST(StringSplitTest, StringSplitDontTrim) {
+  std::vector<std::wstring> r;
+
+  SplitStringDontTrim(L"\t\ta\t", L'\t', &r);
+  ASSERT_EQ(4U, r.size());
+  EXPECT_EQ(r[0], L"");
+  EXPECT_EQ(r[1], L"");
+  EXPECT_EQ(r[2], L"a");
+  EXPECT_EQ(r[3], L"");
+  r.clear();
+
+  SplitStringDontTrim(L"\ta\t\nb\tcc", L'\n', &r);
+  ASSERT_EQ(2U, r.size());
+  EXPECT_EQ(r[0], L"\ta\t");
+  EXPECT_EQ(r[1], L"b\tcc");
+  r.clear();
+}
+
 }  // namespace base